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(N0 ModelQ) 2 Sheets-Sheet 1.

J. H. FRENIER.

APPARATUS-FOR SAWING STONE.

No. 333,510. Patented Jan. 5, 1333.

Wik 2555's. II- X/EI EEJY.

N. PETERS, Photo-Lithograph, Washington. n.0,

(No Model.) I 2 Sheets-Sheet 2. J. H. FRENIER;

APPARATUS FOR SAWING STONE. v No. 333,510. Patented Jan. 5, 1886.

UNITED STATES PATENT OFFICE.

JOHN HENRY FRENIEB, OF RUTLAND, VERMONT.

APPARATUS FOR SAWING STONE.

SPECIFICATION forming part of Letters Patent No. 333,510, dated January5, 1886. Application filed February 9, 1886. Serial No. 155,408. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, JOHN H. FRENIER, of Rutland, county of Rutland,State of Vermont, have invented an Improvement in Apparatus for SawingStone, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

My invention relates to an apparatus for sawing stone of that class inwhich a gang of saw-blades in a common sash or frame are reciprocatedacross the stone held stationary on a bed, thereby cutting the saidstone into a number of slabs at a single operation. The saw-frame issuspended at its ends upon radius bars or links, so that the saw-bladesmove in a curved path or rise at the ends of each stroke; and in orderthat the saws may gradually cut down through the stone from the top tothe bottom the said supportinglinks are caused to descend gradually by asuitable feeding mechanism. The saw-frame is reciprocated or swung backand forth on its links by a pitman or connecting-rod from a crank on anactuating-shaft, and in order to properly operate the saw the saidcrank-shaft should rise or fall with the supporting-links of thesaw-frame as the latter is fed downward through the stone or is raisedto receive a new stone beneath it in position to be cut.

The present invention has for its object to simplify the construction ofthe sawing apparatus, making it more compact and convenient for use, aswell as reducing the expense of construction.

The invention consists, essentially, in an apparatus composed of a mainstationary frame with guides for steadying and guiding the reciprocatingor swinging saw-frame in its movement,and also with guides for thevertically-moving saw-frame supports and crankshaft bearings, combinedwith feeding mechanism common to the saw-frame support and crank-shaftbearings, whereby both are moved upward and downward simultaneously.Means are also provided for transmitting the power from a shaft on thestationary frame-work to the movable crank-shaft. -In this instance ofmy invention the feed is produced by vertical screws, and the linkssupporting one end of the saw-frame are themselves supported on nutsengaging the screws at one end of the frame, and the crank-shaft is alsosupported on nuts engaging the same screws which support and feed theadjacent end of the sawframe.

Figure 1 is a side elevation of a machine for sawing stone embodying myinvention; Fig. 2, a plan View thereof; and Fig. 3 a partial horizontalsection on line :0 m, Fig. 1, showing a portion of the saw-frame inplan.

The main frame consists of a bed or sup porting portion, a, resting onthe ground and adapted to receive upon it thestone S to be cut intoslabs, the said bed having uprights a aflconnected by suitable beams,a,and serving to support the actuating and feeding mechanism ior the sawframe or sash b. The uprights a at one end of the main frame support oneend of the saw-frame, and the uprights a at the other end of the mainframe support the other end of thesawframe, and also support thecrank-shaft c. The uprights a are provided with guide-plates acooperating with guide-plates b on the adjacent end of the saw-frame, toguide the latter steadily in its reciprocating movement, the sawframebeing contained between the uprights a. The uprights a are provided attheir outside with guide-plates a, co -operating with guide-plates 12",connected with the sawframe,'the said guideplates b extending beyond thecross-head b at the adjacent end of the saw-frame, as best shown in Fig.3, the said frame not passing the uprights a in its swinging movement.The saw-frame bis supported at its ends upon links d d, the formerpivoted upon a cross-bar, e, and the latter upon blocks or carriages f,constituting the vertically-movable saw-frame supports. The cross-head eengages guides c on the uprights a, (see Fig. 3,) which steady thecross-head in its vertical movement, and the blocks f engage suitableguides, at, on the uprights a guiding the said blocks in their verticalmovement. The crank-shaft c has its bearings in carriages 0, alsoadapted to slide in the guides a for the saw-frame-supporting blocks f,and the said shaft is provided with cranks 0, each connected by a pitmanor connecting-rod, 0 with the saw-frame b, so that as the saidcrankshaft rotates it actuates the saw-frame with a reciprocatingmovement. The saw-frame b has to be raised above the stone before thecutting operation begins, and then has to feed gradually downwardthrough the stone in cutting the same; and in order to maintain theproper relation between the shaft and the saw-frame the said crank-shaftwill also have to be raised or lowered in conjunction with thesaw-frame. This vertical or feeding movement, as shown in this instance,is effected by feeding-screws g h, provided with beveled pinions g h,the former meshing with beveled pinions i or a shaft, '5, transverse tothe main frame-work, and provided with beveled pinions i meshing withbeveled pinions on the shafts 6, extending lengthwise of the framework.and provided with beveled pinions i meshing with the pinions h,connected with the screws 71, the said gearing. being such that thescrews 9 hare all turned simultaneously and uniformly. The feed-screws gengage nuts in the crosshead e, supporting the links (1 at one end ofthe saw-frame, and the screws h operate in nuts connected with theblocks f, supporting the other end of the sawframe, and also in nutsconnected with the carriages a, supporting the bearings for thecrankshaft 0, so that the latter moves in unison with the blocks f,being always maintained at the same distance therefrom. The crank-shaftc is provided with a pulley, 0, connected by a belt, 0 with a pulley, c,on a shaft, 0 having bearings in a frame, 0 itself supported at one endon the crank-shaft 0 or bearings thereof, so that the said frame 0 risesand falls with the crank-shaft c, maintaining the pulley c at uniformdistance from the pulley c in such movement. The pulley 0 also hasbearings in or is connected with a frame, 0*, having its other endsupported and free to turn in stationary bearings c on the mainframe-work, the said bearings c also supporting a main actuating-shaft,0, provided with a pulley, 0, connected by a belt, 0, with one or theother of a pair of fast and loose pulleys, 0 c, on the shaft 0 the endof the frame a", supported on the said shaft a, rising and fallingtherewith, and keeping the pulleys c 0 at uniform distance from thepulley c on the shaft 0" in the stationary bearings.

The screws 9 h are rotated simultaneously through the bevel-gearingdescribed to produce the feed of the saw-frame and crank-shaft downwardby the following mechanism: A pulley, m, on the shaft 0 is connected bybelt m with one of three pulleys, m m m, on a shaft, m supportedinsuitable bearings, mm, from the main frame-work. One of the pulleys m mis fast and the other loose on the shaft m, and the pulley m is loose onthe said shaft-,and provided with an eccentric, m having a rod, mconnected with an arm, m, from a rock-shaft, m. provided with an arm, a,connected bya link, a, (see Fig. 1,) with a pawlcarrying arm, a pivotedon aframe, of, itself pivoted on the main frame-work at a, and

supporting a pinion, of, having connected with it a ratchet, n, adaptedto be engaged by the pawl n on the pawl-carrier a so that the saidratchet and connected pinion n are ro tated intermittingly as thepawl-carrier n is oscillated back and forth by the connecting mechanismbetween it and the eccentric m, connected with the pinion m.

WVhen the frame n is in the position shown in Fig. 1, the pinion nmeshes with a gear, 0, on the shaft i, so that the said shaftis causedto rotate intermittingly, and by the connected gearing to turn thefeed-screws g h in the direction to lower the said frame and crankshaft.The shaft m is provided with a pinion, 0, meshing at one side with asingle intermediate, o, and at its other side with a pair ofintermediates, 0 all having their bearing on a frame, 0, pivoted to turnaround the axis of the shaft m", so as to throw either the intermediate0* or one of the intermediates 0 into engagement with the gear 0.

The frame n, supporting the pinion n", is connected by a link, 0 withthe frame 0, so that when the said frame 0 is turned in either directionto throw one or the other of the intermediates into engagement with thegear 0 the frame a is lowered, and the pinion n is thrown out ofengagement with the gear 0. Then by placing the belt driven from thepulley m on the pulley m or mithat is fast on the shaft m the latter,together with the pinion 0 and intermediates, will be rotated, turningthe gear 0 rapidly in one or the other direction, according as one orthe other of the intermediates is engaged therewith, thus enabling thesaw-frame and crank-shaft to be rapidly raised or lowered while the sawsare not acting on the stone.

The frame 0" is moved to the different positions to cause the rapidupward or downward movement thereof by a handle, 0 provided with aseries of stops, 0", by which it may be retained in the proper positionto cause the desired one of the feeding or frame-moving operations totake place.

The invention is not limited to the exact construction herein shown, asit may be modified in various ways. The carriages c and blocks f mightbe rigidly connected together or constitute a single frame-work havingbut one set of nuts co-operating with the feed;- screws h, and it is notessential that the sawframe should move in a curved path.

I do not herein claim, but reserve for my application Serial No.184,451, filed Decemher 2, 1885, a stone-sawing machine having theintermittent feed mechanism supporting frame a and the reversingcontinuous feed mechanism supporting frame 0', positively connected, sothat the adjusting of one frame automatically adjusts the other; neitherdo I herein claim a feeding mechanism comprising the frame a andgearing, and the frame 0, provided with thepinions 0 0 0 and crank-armp, and the link 0, connecting the two frames, and a handle connected toone of the frames to operate it, the other frame being automaticallyoperated from the frame first named through its described connectiontherewith.

I claim- 1. In a sawing-machine, a single main frame provided withupright guides at its ends,combined with a saw-frame, supports movablevertically on said guides, links pivoted to said supports and the sawframe, an actuating crank-shaft, the pitman c connecting the crank-shaftand saw-frame, the screw-rods gh, the latter common to both thesaw-frame and crank-shaft, and connecting-gearing for said rods, andmeans to operate said gearing, substantially as described.

2. The saw-frame and its vertically-movable supports or blocks, andpivoted connectinglinks, combined with the actuating crank-shaft, itsconnecting-rod c and vertically-movable supports, and the screw-rods h,common to both the said saw-frame and crank-shaft, movable supports orblocks, and the mechanism to' rotate said screw-rodsh, whereby bothsawframe and crank-shaft are moved vertically in unison, substantiallyas described.

3. The main framework and main shafts",

- havingstationary bearings on said frame-work,

and provided with a pulley, c, the crankshaft c, and means to move itvertically on said frame-work, combined with a pulley, 0 and its twosupporting-frames, c and c", the former moving with the verticalmovement of the crank-shaft, and the latter having a pivotal movement onthe main shaft, a pulley, c", on the crank-shaft, and belts c 0,connecting the pulley 0" through the pulley o with the driving shaftpulley, substantially as described.

4. The main framework of a stone-sawing machine, having uprightsprovided with means to guide and vertically adjust the forward end ofthe saw-frame, combined with guides at on vthe main frame, and guides bextending beyond the rear end of the saw-frame and emh, the lattercommon to both the saw-frame and crank-shaft, and connecting-gearing forsaid rods, and means to operate said gearing, and a reversing feedmechanism for controlling the motion of said gearing, substantially asdescribed.

6. In a stone-sawing machine, the main frame-work having uprights a,provided with guides a, combined with the reciprocating saw-frame havingguides 1) extending beyond one of its ends and embracing theco-operating guides a of the uprights between them, and the actuatingcrankshaft c, and its bearing carriages c, movable vertically upon thesaid uprights, substantially as described.

7. In a stone -sawing machine, the main frame having uprights providedwith guides a a", combined with the saw-frame, and supporting blocksthereof movable on the said guides, and the actuating crank-shaft c,having a carriage, 0, also movable on the same guides that serve for oneend of the same frame, and the screw-rods h, engaging the blocks andcarriage, and mechanism to rotate said screw-rods, whereby one end ofthe sawframe and the crank-shaft are vertically moved in unison,substantially as described.

In testimony whereof I- have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN HENRY FRENIER.

Witnesses:

FRANK W. GARY, HOMER L. Hood.

